fix: clarify disabled input + cache

Change-Id: I0b89b2cc25cb1c1f6eb7ee84b96723397ac5c3c3
Signed-off-by: Thomas Kosiewski <tk@coder.com>

Author: ThomasK33

src/browser/components/AIView.tsx

@@ -800,6 +800,11 @@ const AIViewInner: React.FC<AIViewProps> = ({
           onTruncateHistory={handleClearHistory}
           onProviderConfig={handleProviderConfig}
           disabled={!projectName || !workspaceName || isQueuedAgentTask}
+          disabledReason={
+            isQueuedAgentTask
+              ? "Queued — waiting for an available parallel task slot. This will start automatically."
+              : undefined
+          }
           isCompacting={isCompacting}
           editingMessage={editingMessage}
           onCancelEdit={handleCancelEdit}

src/browser/components/ChatInput/index.tsx

@@ -1484,6 +1484,12 @@ const ChatInputInner: React.FC<ChatInputProps> = (props) => {
         : `${formatKeybind(KEYBINDS.CANCEL_EDIT)} to cancel`;
       return `Edit your message... (${cancelHint}, ${formatKeybind(KEYBINDS.SEND_MESSAGE)} to send)`;
     }
+    if (disabled) {
+      const disabledReason = props.disabledReason;
+      if (typeof disabledReason === "string" && disabledReason.trim().length > 0) {
+        return disabledReason;
+      }
+    }
     if (isCompacting) {
       const interruptKeybind = vimEnabled
         ? KEYBINDS.INTERRUPT_STREAM_VIM

src/browser/components/ChatInput/types.ts

@@ -28,6 +28,8 @@ export interface ChatInputWorkspaceVariant {
   onEditLastUserMessage?: () => void;
   canInterrupt?: boolean;
   disabled?: boolean;
+  /** Optional explanation displayed when input is disabled */
+  disabledReason?: string;
   onReady?: (api: ChatInputAPI) => void;
   autoCompactionCheck?: AutoCompactionCheckResult; // Computed in parent (AIView) to avoid duplicate calculation
   /** Reviews currently attached to chat (from useReviews hook) */

src/node/services/taskService.ts

@@ -156,6 +156,8 @@ export class TaskService {
   private readonly mutex = new AsyncMutex();
   private readonly pendingWaitersByTaskId = new Map<string, PendingTaskWaiter[]>();
   private readonly pendingStartWaitersByTaskId = new Map<string, PendingTaskStartWaiter[]>();
+  // Cache completed reports so callers can retrieve them even after the task workspace is removed.
+  // Bounded by TTL + max entries (see COMPLETED_REPORT_CACHE_*).
   private readonly completedReportsByTaskId = new Map<
     string,
     { reportMarkdown: string; title?: string; expiresAtMs: number }